Three-dimension (3D) glasses and method for controlling power and pairing thereof

ABSTRACT

3D glasses and a method of controlling power and pairing thereof are provided. The method of controlling power and pairing includes: restricting supply of a specific power of 3D glasses; performing, by the 3D glasses, pairing with a display apparatus; and if it is determined that the pairing is performed, lifting the restriction on the supply of the specific power. Therefore, a user may perform pairing between the 3D glasses and the 3D display apparatus easily and prevent power of the 3D glasses from being unnecessarily wasted.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority from Korean Patent Application No.2011-0012980, filed in the Korean Intellectual Property Office on Feb.14, 2011, the disclosure of which is incorporated herein in its entiretyby reference.

BACKGROUND

1. Field

Apparatuses and methods consistent with exemplary embodiments relate tothree-dimensional (3D) glasses and a method for controlling power andpairing thereof, and more particularly, to 3D glasses which areinterlocked with a 3D display apparatus and a method for controllingpower and pairing thereof.

2. Description of the Related Art

Recently, developments in wireless communication technologies have beenfocused on technologies using low-cost and low-power wirelessapparatuses or wireless links and thus, various technologies regardingwireless communication have been developed and realized. Bluetooth is awireless communication method based on short-range radio technology andoperates in 2.4 GHz Industrial, Scientific, and Medical (ISM) frequencyband. Bluetooth has been widely used since it is capable of transmittingaudio and data at a maximum speed of 1 Mbps in a radius of 10 m andconsumes a relatively low amount of power.

In particular, a Bluetooth module is adopted by a mobile communicationterminal in many cases and thus, pairing between a mobile communicationterminal including a Bluetooth module and other Bluetooth apparatuses isessential. The process of pairing may be performed using authentication,a PIN code, or encryption. Authentication is a process of determiningwhether to exchange a PIN code (e.g., a pass key) to be connected withanother Bluetooth apparatus, a PIN code is a type of a password andrepresents a process of unifying a PIN code between Bluetoothapparatuses, and encryption is a process of encrypting data which isexchanged by Bluetooth apparatuses.

Recently, Bluetooth has been widely used as a communication methodbetween a 3D display apparatus and 3D glasses. In order for a user towatch a 3D screen using 3D glasses, authentication should be performedbetween the 3D glasses and a 3D display apparatus every time a 3Ddisplay apparatus is paired with 3D glasses, causing inconvenience to auser. In addition, if a 3D display apparatus is paired with 3D glasses,the power of the 3D glasses is used even when the 3D glasses are not inuse.

SUMMARY

Aspects of one or more exemplary embodiments relate to 3D glasses which,if it is determined that a 3D display apparatus is paired with 3Dglasses, lift restriction on power supply to the 3D glasses to whichpower supply has been restricted, and a method of controlling power andpairing thereof.

Aspects of one or more exemplary embodiments relate to 3D glasses whichcontrol specific power according to whether a 3D display apparatus ispaired with the 3D glasses, whether it is sensed that a user wears the3D glasses, and a scanning result of 3D data, and a method ofcontrolling power and pairing thereof.

According to an aspect of an exemplary embodiment, there is provided amethod of controlling power and pairing of 3D glasses, the methodincluding: restricting supply of a specific power of 3D glasses;performing pairing with a display apparatus; and if it is determinedthat the pairing is performed, lifting the restriction on the supply ofthe specific power.

The performing the pairing may include sensing a user's key input andperforming the pairing with the display apparatus according to thesensing.

The key input may include at least one of a power key input and apairing key input.

The key input may include an input to a key on the 3D glasses.

The performing the pairing may include sensing whether a user wears the3D glasses and performing the pairing with the display apparatusaccording to the sensing.

The specific power may correspond to power regarding at least one of asensor and a shutter of the 3D glasses.

The specific power may correspond to power regarding at least one of anaccelerator sensor and a touch sensor of the 3D glasses.

The restricting may include suspending the supply of the specific powerby interruption of a sensing unit of the 3D glasses.

The performing the pairing may include: sensing a pairing requestsignal; and if the pairing is a first pairing, the pairing is performedwhen the pairing request signal is sensed continuously for a firstperiod of time, and if the pairing is not the first pairing, the pairingis performed when the pairing request signal is sensed continuously fora second period of time.

The first period of time may be shorter than the second period of time.

According to an aspect of another exemplary embodiment, there isprovided a method of controlling power and pairing of 3D glasses, themethod including: performing pairing with a display apparatus; sensingwhether a user wears the 3D glasses; scanning whether 3D data is input;and controlling specific power of the 3D glasses according to a resultof the pairing, the sensing and the scanning.

The 3D data may include sync information between the display apparatusand the 3D glasses.

The sensing may use at least one of an accelerator sensor and a touchsensor.

The specific power may correspond to power of at least one of a controlunit, a sensing unit, and a shutter on/off unit of the 3D glasses.

The controlling the specific power may include suspending the supply ofthe specific power if the 3D data is not scanned for a predeterminedperiod of time.

The controlling the specific power may include suspending the supply ofthe specific power if an operation of sensing whether the user wears the3D glasses is repeated for more than a predetermined number of times.

The method may further include, if an operation voltage of a sensor forthe sensing is below a predetermined voltage, providing an alarm to auser.

The performing the pairing may include sensing a pairing request signal,and if the pairing is a first pairing, the pairing is performed when thepairing request signal is sensed continuously for a first period oftime, and if the pairing is not the first pairing, the pairing isperformed when the pairing request signal is sensed continuously for asecond period of time.

The first period of time may be shorter than the second period of time.

According to an aspect of another exemplary embodiment, there isprovided 3D glasses including: a power supply unit which providesspecific power of 3D glasses; a communication unit which performspairing with a display apparatus; and a control unit which liftsrestriction on supply of the specific power of the 3D glasses if thepairing is performed with the display apparatus while supply of specificpower of the 3D glasses is restricted.

The 3D glasses may further include a key input unit which senses auser's key input, and the control unit may control to perform thepairing with the display apparatus according to a sensing result by thekey input unit.

The key input may include at least one of a power key input and apairing key input.

The key input may be an input to a key on the 3D glasses.

The 3D glasses may further include a sensing unit which senses whether auser wears the 3D glasses, and the control unit may control to performpairing with the display apparatus according to a sensing result of thesensing unit.

The specific power may include power regarding at least one of a sensorand a shutter of the 3D glasses.

The specific power may include power regarding at least one of anaccelerator sensor and a touch sensor of the 3D glasses.

The restricting may include suspending the supply of the specific powerby interruption of a sensing unit of the 3D glasses.

The control unit, if the pairing is a first pairing, may perform pairingwhen the pairing request signal is sensed continuously for a firstperiod of time, and if the pairing is not the first pairing, performpairing when the pairing request signal is sensed continuously for asecond period of time.

The first period of time may be shorter than the second period of time.

According to an aspect of another exemplary embodiment, there isprovided 3D glasses including: a power supply unit which provides aspecific power of 3D glasses; a communication unit which performspairing with a display apparatus; and a control unit which scans whether3D data is input through the communication unit and controls thespecific power of the 3D glasses according to a result of the pairing, asensing by a sensing unit of whether a user wears the 3D glasses, andthe scanning.

The 3D data may include sync information between the display apparatusand 3D glasses.

The sensing unit may include at least one of an accelerator sensor and atouch sensor.

The specific power may correspond to power of at least one of thecontrol unit, the sensing unit, and a shutter on/off unit of the 3Dglasses.

The control unit, if the 3D data is not scanned for a predeterminedperiod of time, may control to suspend the supply of the specific power.

The control unit, if an operation of sensing whether the user wears the3D glasses is repeated for more than a predetermined number of timesaccording to a sensing result of the sensing unit, may control tosuspend supply of the specific power.

The 3D glasses may further include an alarming unit which, if anoperation voltage of a sensor for the sensing is below a predeterminedvoltage, provides an alarm to the user.

The control unit, if the pairing is a first pairing, may perform thepairing when the pairing request signal is sensed continuously for afirst period of time, and if the pairing is not the first pairing,perform the pairing when the pairing request signal is sensedcontinuously for a second period of time.

The first period of time may be shorter than the second period of time.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other aspects will be more apparent by describingcertain exemplary embodiments with reference to the accompanyingdrawings, in which:

FIG. 1 is a view illustrating a 3D image providing system according toan exemplary embodiment;

FIG. 2 is a view illustrating a block diagram of 3D glasses according toan exemplary embodiment;

FIG. 3 is a view illustrating a key input unit disposed on 3D glassesaccording to an exemplary embodiment;

FIG. 4 is a view illustrating a sensing unit of 3D glasses according toan exemplary embodiment; and

FIG. 5 is a flowchart to explain a method for controlling pairing andpower of 3D glasses according to an exemplary embodiment.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Certain exemplary embodiments are described in greater detail below withreference to the accompanying drawings.

In the following description, like drawing reference numerals are usedfor the like elements, even in different drawings. The matters definedin the description, such as detailed constructions and elements, areprovided to assist in a comprehensive understanding of exemplaryembodiments. However, exemplary embodiments can be practiced withoutthose specifically defined matters. Also, well-known functions orconstructions are not described in detail since they would obscure thedescription with unnecessary detail. Hereinafter, expressions such as“at least one of,” when preceding a list of elements, modify the entirelist of elements and do not modify the individual elements of the list.

FIG. 1 is a view illustrating a 3D image providing system 100 accordingto an exemplary embodiment. As illustrated in FIG. 1, the 3D imageproviding system 100 includes a 3D display apparatus 110 for displayinga 3D image on a screen and 3D glasses 120 for watching a 3D image.

The 3D display apparatus 110 receives the 3D image from an image devicesuch as a photographing apparatus, a camera, etc., or from abroadcasting station where the 3D image has been transmitted to after atleast one of editing and processing, and then processes the 3D image,and displays the processed 3D image on the screen. In particular, the 3Ddisplay apparatus 110 processes a left eye image and a right eye imagetaking into account the format of the 3D image, and enables theprocessed left eye image and the right eye image to be displayedalternately in a timesharing manner.

In addition, the 3D display apparatus 110 generates a sync signal whichis synchronized with a timing when the left eye image or the right eyeimage is displayed in a timesharing manner and transmits the sync signalto the 3D glasses 120. Herein, the sync signal is generated as aplurality of pulses occur periodically at every Vsync signal of thedisplay apparatus 110.

In this case, the 3D display apparatus 110 may be embodied as a 3D TV, a3D projector, and a 3D monitor.

The 3D glasses 120 open and close left eye glasses and right eye glassesalternately according to a sync signal received from the 3D displayapparatus 110 so that a user may watch a left eye image and a right eyeimage through the left eye and the right eye, respectively.

In particular, the 3D glasses 120 perform pairing with the 3D displayapparatus 110 by sensing whether a key is input by a user or whether auser wears the 3D glasses during a sealed state, that is, while supplyof specific power is restricted. If the pairing with the 3D displayapparatus 110 is performed, the 3D glasses 120 lift the restriction onpower supply to specific power and provide power to the specific powerof the 3D glasses.

In addition, after the 3D glasses 120 are unsealed, the 3D glasses 120restrict power supply to specific power of the 3D glasses 120 dependingon whether pairing has been performed, whether a user wears the 3Dglasses, and whether 3D data is received and scanned.

Hereinafter, the 3D glasses 120 according to an exemplary embodimentwill be explained with reference to FIG. 2. As illustrated in FIG. 2,the 3D glasses 120 according to an exemplary embodiment include a keyinput unit 121, a sensing unit 122, a control unit 123, a shutter on/offunit 124, a power supply unit 125 and a communication unit 126.

The key input unit 121 includes a power key input unit which receives apower supply command of the 3D glasses 120 and a pairing key input unitwhich receive a command for performing pairing of the 3D displayapparatus 110. In this case, the power key input unit and the pairingkey input unit may be embodied as buttons provided on the 3D glasses120.

Specifically, as illustrated in FIG. 3, the power key input unit 311 andthe pairing key input unit 312 may be disposed on the frame of theglasses 120.

In particular, if the power key input unit 311 is selected, the 3Dglasses 120 control to provide power to each component of the 3D glasses120. In addition, if a power key input unit 311 is selected for thefirst time in the 3D glasses 120 which are unsealed, the 3D glasses 120may not only provide power to each component of the 3D glasses 120 butalso perform pairing between the 3D glasses 120 and the 3D displayapparatus 110 in a proximity to the 3D glasses 120.

In addition, if the pairing key input unit 312 is selected, the 3Dglasses 120 sense a pairing request signal and perform the pairingbetween the 3D glasses 120 and the 3D display apparatus 110. Inparticular, if the pairing key input unit 312 is selected for the firsttime in the 3D glasses 120 which are unsealed, the pairing key inputunit 312 generates a pairing request signal and the control unit 123senses the pairing request signal so as to perform pairing between the3D glasses 120 and the 3D display apparatus 110 in a proximity to the 3Dglasses 120.

If a user wishes to perform pairing again between the 3D glasses andanother 3D display apparatus, the pairing between the 3D glasses and theother 3D display apparatus 110 may be performed as the pairing key inputunit 312 is selected.

In this case, if the 3D glasses are in an unsealed state, that is, if itis the first pairing, and the pairing key input unit 312 is pressed fora first period of time while pairing between the 3D glasses and the 3Ddisplay apparatus 110 is performed, the control unit 123 senses apairing request signal for the first period of time to perform pairingbetween the 3D glasses 120 and the 3D display apparatus 110. Whenpairing is performed again between the 3D glasses and another 3D displayapparatus, and the pairing key input unit 312 is pressed for a secondperiod of time, the control unit 123 senses a pairing request signal forthe second period of time to perform pairing between the 3D glasses 120and the other 3D display apparatus. In this case, the first period oftime may be shorter than the second period of time.

However, this is only an example, and another exemplary embodiment isnot limited thereto. For example, according to another exemplaryembodiment, respective pairings may be applied when the pairing keyinput unit 312 is pressed once while pairing between the 3D glasses andthe 3D display apparatus 110 is performed for the first time and thepairing key input unit 312 is pressed twice in a row while pairingbetween the 3D glasses and the other 3D display apparatus 110 isperformed again.

The sensing unit 122 senses whether a user wears the 3D glasses 120. Inthis case, the sensing unit 122 may be realized using at least one of anaccelerator sensor and a touch sensor. However, this is only an example,and whether a user wears the 3D glasses 120 may be sensed using othersensors according to one or more other exemplary embodiments.

For example, according to another exemplary embodiment, as illustratedin FIG. 4, the touch sensors 411, 412 may be disposed on a positionwhere the frame of the 3D glasses 120 comes in contact with a user'sear. However, this is only an example, and whether a user wears the 3Dglasses 120 may be sensed using a touch sensor which is located inanother position according to another exemplary embodiment.

The shutter on/off unit 124 operates a shutter according to a controlsignal generated by the control unit 123. In particular, the shutteron/off unit 124 includes a left eye shutter and a right eye shutter andturns on and off the left eye shutter and the right eye shutteralternately according to a control signal which is generated based on async signal received from the 3D display apparatus 110.

The power supply unit 125 provides power to the components of the 3Dglasses 120 under the control of the control unit 123. In particular,the power supply unit 125 provides or restricts power to a specificcomponent of the 3D glasses 120 according to whether pairing with the 3Ddisplay apparatus 110 has been performed, whether it is sensed that auser wears the 3D glasses 120, and whether 3D date has been scanned.

The communication unit 126 performs communication with the 3D displayapparatus 110. In particular, the communication unit 126 performspairing in order to communicate with the 3D display apparatus 110.Specifically, the pairing may be performed using at least one ofauthentication, a PIN code, encryption, etc. Authentication is a processof determining whether to exchange a PIN code (e.g., a pass key) to beconnected with another Bluetooth apparatus, a PIN code is type of apassword and represents a process of unifying a PIN code betweenBluetooth apparatuses, and encryption is a process of encrypting datawhich is exchanged by Bluetooth apparatuses. In this case, thecommunication unit 126 may operate using a Bluetooth module. However,this is only an example, and pairing with the 3D display apparatus 110may be performed using another type of communication module and method.

Once pairing with the 3D display apparatus 110 is performed, thecommunication unit 126 receives 3D data from the 3D display apparatus110. In this case, the 3D data may include sync information between the3D display apparatus 110 and the 3D glasses 120.

The control unit 123 controls the overall operation of the 3D glasses120 according to a user's input received through at least one of theuser key input unit 121 and the sensing unit 122.

In particular, the control unit 123 performs pairing with the 3D displayapparatus 110 according to whether a user's input is received by the keyinput unit during a sealed state (that is, while supply of power isrestricted). Specifically, if the power key input unit 311 or thepairing key input unit 312 is selected, the control unit 123 attempts toperform pairing with the 3D display apparatus 110.

If pairing with the 3D display apparatus 110 is performed, the controlunit 123 lifts restriction on power supply to specific power of the 3Dglasses. Specifically if pairing with the 3D display apparatus 110 isperformed, the control unit 123 lifts restriction on power supply to thesensing unit 122 of the 3D glasses 120 to supply power to the sensingunit 122.

If power is supplied to the sensing unit 122, the control unit 123senses whether a user wears the 3D glasses 120 through the sensing unit122 and controls power supply of the 3D glasses 120 accordingly.Specifically, if the control unit 123 does not sense that a user wearsthe 3D glasses 120 through the sensing unit 122, the control unit 123suspends power supply of the 3D glasses 120 again.

In addition, if the operation of sensing whether a user wears 3D glassesis repeated for more than a predetermined number of times, the controlunit 123 may suspend supply of specific power of the 3D glasses 120again.

Once the sensing unit 122 senses whether a user wears 3D glasses, thecontrol unit 123 scans whether 3D data, that is, a sync signal, isreceived through the communication unit 126. If 3D data is scanned, thecontrol unit 123 operates the shutter on/off unit 124 to allow a userwatch a 3D image which is output from the 3D display apparatus 110.

If 3D data is not scanned for a predetermined period of time, thecontrol unit 123 suspends supply of specific power of the 3D glasses 120again. In this case, the predetermined period of time may represent anapproximate time for a user to manipulate a remote controller withreference to a user's manual, for example, 5 minutes. However, this isonly an example, and the predetermined period of time may be set by auser directly or may be a different value.

In addition, the control unit 123 may restrict power supply of the 3Dglasses 120 by interruption of the sensing unit 122 of the 3D glasses120. Specifically, if an external oscillation having a value higher thana specific value occurs while the 3D glasses 120 are preserved, thecontrol unit 123 provides power to the components of the 3D glasses 120.In addition, if 3D data is scanned, the control unit 123 provides powerto the shutter on/off unit 124. However, if 3D data is not scanned for apredetermined period of time (for example, for 10 seconds), the controlunit 123 determines whether there is external oscillation again. If anexternal oscillation having a value higher than a specific value occursagain, the control unit 123 determines whether 3D data is scanned again.The control unit 123 determines whether external oscillation occurs andwhether 3D data is input repeatedly for a predetermined number of times.If it is determined that external oscillation occurs and 3D data isinput for the predetermined number of times, power is supplied to theshutter on/off unit 124, and if not, power supply of the 3D glasses 120is suspended.

However, aspects of the present inventive concept are not limited to theabove-described exemplary embodiments. For example, according to anotherexemplary embodiment, power supply of the 3D glasses 120 may berestricted by interruption of another sensing unit 122. For example, ifan external metal approaches while the 3D glasses 120 are preserved, thecontrol unit 123 may restrict power supply of the 3D glasses 120 bydetermining whether the external metal approaches and whether 3D data isinput repeatedly.

In addition, the control unit 123 may perform pairing through thepairing key input unit 312 when the 3D glasses 120 are paired againafter being paired for the first time. However, if the pairing is thefirst pairing, the control unit 123 controls to perform pairing when apairing request signal is sensed continuously for a first period oftime, and if the pairing is not the first pairing, the control unit 123controls to perform pairing when a pairing request signal is sensedcontinuously for a second period of time. In this case, the first periodof time may be shorter than the second period of time.

In addition, the control unit 123 may perform pairing with the 3Ddisplay apparatus 110 automatically when it is sensed that a user wearsthe 3D glasses 120 by the sensing unit 122.

In addition, the control unit 123 may provide an alarm or a signal to auser when the operation voltage of a sensing unit is below a specificvoltage to inform that the battery of the 3D glasses 120 needs to berecharged or replaced. In this case, the alarm may be embodied as anaudio signal, such as ‘beep’ sound, or a visual alarm signal.Alternatively, battery discharge information may be transmitted to the3D display apparatus 110 so that the battery discharge information maybe displayed through the 3D display apparatus 110.

Using the above-described 3D glasses, a user may perform pairing betweenthe 3D glasses 120 and the 3D display apparatus 110 easily and preventpower of the 3D glasses 120 from being unnecessarily wasted.

Hereinafter, a method of controlling power and pairing of the 3D glasses120 will be explained with reference to FIG. 5.

FIG. 5 is a flowchart to explain a method of controlling power andpairing of the 3D glasses 120 according to an exemplary embodiment.

Power supply is restricted since the 3D glasses 120 are in a sealedstate (operation S510). Subsequently, the 3D glasses 120 sense whether auser's key input is received through the user key input unit 121(operation S520). In this case, the key input unit 121 may be the powerkey input unit 311 or the pairing key input unit 312.

If a user's key input is sensed (operation 5520-Y), the 3D glasses 120perform pairing with the 3D display apparatus 110 (operation S530). Inthis case, if the pairing with the 3D display apparatus 110 is notperformed for a predetermined period of time (operation S540-N), the 3Dglasses 120 maintain a state where supply of specific power isrestricted (operation S590).

However, if the pairing with the 3D display apparatus 110 is performed(operation 5540-Y), the 3D glasses 120 lift restriction on supply ofspecific power of the 3D glasses 120 (operation S550). Specifically, the3D glasses 120 provide power to at least one of the sensing unit 122,the control unit 123, and the shutter on/off unit 124 of the 3D glasses120.

In addition, the 3D glasses 120 sense whether a user wears the 3Dglasses 120 using the sensing unit 122 (operation S560). If it isdetermined that the 3D glasses 120 are not used for a predeterminedperiod of time (operation S560-Y), the 3D glasses 120 restrict supply ofspecific power of the 3D glasses 120 again (operation S590).

However, if it is determined that the 3D glasses 120 are used (operationS560-N), the 3D glasses 120 scan whether 3D data is input through thecommunication unit 126 (operation S570). If it is determined that the 3Dglasses 120 are not input for a predetermined period of time (operationS570-N), the 3D glasses 120 restrict supply of specific power of the 3Dglasses 120 again (operation S590).

However, if it is determined that 3D data is input from the 3D displayapparatus 110, the 3D glasses 120 turn on/off a shutter (operationS580). That is, the 3D glasses 120 provide power to the shutter on/offunit 124 to watch a 3D image output from the 3D display apparatus 110and operate the shutter on/off unit 124.

Through the above-described method, a user may perform pairing betweenthe 3D glasses 120 and the 3D display apparatus 110 easily and preventpower of the 3D glasses 120 from being unnecessarily wasted.

While not restricted thereto, exemplary embodiments can also be embodiedas computer-readable code on a computer-readable recording medium. Thecomputer-readable recording medium is any data storage device that canstore data that can be thereafter read by a computer system. Examples ofthe computer-readable recording medium include read-only memory (ROM),random-access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, andoptical data storage devices. The computer-readable recording medium canalso be distributed over network-coupled computer systems so that thecomputer-readable code is stored and executed in a distributed fashion.Also, exemplary embodiments may be written as computer programstransmitted over a computer-readable transmission medium, such as acarrier wave, and received and implemented in general-use orspecial-purpose digital computers that execute the programs. Moreover,one or more units of the 3D glasses can include a processor ormicroprocessor executing a computer program stored in acomputer-readable medium.

Although a few exemplary embodiments have been shown and described, itwould be appreciated by those skilled in the art that changes may bemade in exemplary embodiment without departing from the principles andspirit of the inventive concept, the scope of which is defined in theclaims and their equivalents.

What is claimed is:
 1. A method of controlling power and pairing of 3Dglasses, the method comprising: performing pairing between 3D glassesand a display apparatus; sensing whether a user wears the 3D glasses;scanning whether 3D data is input; and controlling specific power of the3D glasses according to a result of the pairing, the sensing and thescanning.
 2. The method as claimed in claim 1, wherein the 3D datacomprises sync information between the display apparatus and the 3Dglasses.
 3. The method as claimed in claim 1, wherein the sensingcomprises sensing whether the user wears the 3D glasses using at leastone of an accelerator sensor and a touch sensor.
 4. The method asclaimed in claim 1, wherein the specific power corresponds to power ofat least one of a control unit which controls operations of the 3Dglasses, a sensing unit which senses whether the user wears the 3Dglasses, and a shutter on/off unit of the 3D glasses.
 5. The method asclaimed in claim 1, wherein the controlling the specific power comprisessuspending supply of the specific power if no 3D data is scanned for apredetermined period of time.
 6. The method as claimed in claim 1,wherein the controlling the specific power comprises suspending thesupply of the specific power if an operation of sensing whether the userwears the 3D glasses is repeated for more than a predetermined number oftimes without sensing that the user wears the 3D glasses.
 7. The methodas claimed in claim 1, wherein the performing the pairing comprises:sensing a pairing request signal; and if the pairing is a first pairing,performing the pairing when the pairing request signal is sensedcontinuously for a first period of time, and if the pairing is not afirst pairing, performing the pairing when the pairing request signal issensed continuously for a second period of time.
 8. The method asclaimed in claim 7, wherein the first period of time is shorter than thesecond period of time.
 9. 3D glasses comprising: a power supply unitwhich provides a specific power of the 3D glasses; a communication unitwhich performs pairing with a display apparatus; and a control unitwhich scans whether 3D data is input through the communication unit andcontrols the specific power of the 3D glasses according to a result ofthe pairing, sensing whether a user wears the 3D glasses, and thescanning.
 10. The 3D glasses as claimed in claim 9, wherein the 3D datacomprises sync information between the display apparatus and the 3Dglasses.
 11. The 3D glasses as claimed in claim 9, further comprising asensing unit which senses whether the user wears the 3D glasses, whereinthe sensing unit comprises at least one of an accelerator sensor and atouch sensor.
 12. The 3D glasses as claimed in claim 9, wherein thespecific power corresponds to power of at least one of the control unit,a sensing unit which senses whether the user wears the 3D glasses, and ashutter on/off unit of the 3D glasses.
 13. The 3D glasses as claimed inclaim 9, wherein the control unit, if the 3D data is not scanned for apredetermined period of time, controls to suspend the supply of thespecific power.
 14. The 3D glasses as claimed in claim 9, wherein thecontrol unit, if an operation of sensing whether the user wears the 3Dglasses is repeated for more than a predetermined number of timesaccording to a sensing result of a sensing unit, controls to suspend thesupply of the specific power.
 15. The 3D glasses as claimed in claim 9,further comprising: an alarming unit which, if an operation voltage of asensor for the sensing is below a predetermined voltage, provides analarm to the user.
 16. The 3D glasses as claimed in claim 9, wherein thecontrol unit, if the pairing is a first pairing, performs the pairingwhen the pairing request signal is sensed continuously for a firstperiod of time, and if the pairing is not the first pairing, performsthe pairing when the pairing request signal is sensed continuously for asecond period of time.
 17. The 3D glasses as claimed in claim 16,wherein the first period of time is shorter than the second period oftime.
 18. A non-transitory computer readable medium having recordedthereon a program executable by a computer for performing the method ofclaim 1.